Organization and Summary of Significant Accounting Policies (Schedule of Capitalized Salaries, Commissions and Benefits, Real Estate Taxes and Interest) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Accounting Policies [Abstract]
Salaries and benefits	$ 1,380	$ 1,296	$ 1,138
Real Estate Taxes Capitalized	1,198	1,035	246
Capitalized Interest Costs, Including Allowance for Funds Used During Construction	6,395	7,620	3,191
Salaries, commissions and benefits	$ 7,022	$ 6,066	$ 6,101